Home / 20,246.81-27,940.68-11,294.15

Finding the Fourth Proportional to 20,246.81, 27,940.68 and 11,294.15

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Solution

The fourth proportional to 20,246.81, 27,940.68 and 11,294.15 is: 15,585.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,246.81 : 27,940.68 = 11,294.15 : x
  2. Step 2: Convert to fraction form
    20,246.81/27,940.68 = 11,294.15/x
  3. Step 3: Cross multiply
    20,246.81x = 27,940.68 × 11,294.15
  4. Step 4: Simplify right side
    20,246.81x = 315,566,091.32
  5. Step 5: Solve for x
    x = 315,566,091.32/20,246.81
  6. Step 6: Final answer
    x = 15,585.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.